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<pre><span class="sourceLineNo">001</span>package imagingbook.calibration.zhang.util;<a name="line.1"></a>
<span class="sourceLineNo">002</span><a name="line.2"></a>
<span class="sourceLineNo">003</span>import ij.process.ImageProcessor;<a name="line.3"></a>
<span class="sourceLineNo">004</span><a name="line.4"></a>
<span class="sourceLineNo">005</span>import java.awt.Color;<a name="line.5"></a>
<span class="sourceLineNo">006</span>import java.awt.geom.Point2D;<a name="line.6"></a>
<span class="sourceLineNo">007</span><a name="line.7"></a>
<span class="sourceLineNo">008</span>/**<a name="line.8"></a>
<span class="sourceLineNo">009</span> * Helper class for drawing projections of the calibration target.<a name="line.9"></a>
<span class="sourceLineNo">010</span> * @author W. Burger<a name="line.10"></a>
<span class="sourceLineNo">011</span> *<a name="line.11"></a>
<span class="sourceLineNo">012</span> */<a name="line.12"></a>
<span class="sourceLineNo">013</span>public class GridPainter {<a name="line.13"></a>
<span class="sourceLineNo">014</span><a name="line.14"></a>
<span class="sourceLineNo">015</span>        // parameters to modify:<a name="line.15"></a>
<span class="sourceLineNo">016</span>        public Color lineCol = Color.gray;<a name="line.16"></a>
<span class="sourceLineNo">017</span>        public Color[] cornerColors = {Color.red, Color.green, Color.blue, Color.gray};<a name="line.17"></a>
<span class="sourceLineNo">018</span>        public int crossSize = 2;<a name="line.18"></a>
<span class="sourceLineNo">019</span>        <a name="line.19"></a>
<span class="sourceLineNo">020</span>        <a name="line.20"></a>
<span class="sourceLineNo">021</span>        private final ImageProcessor ip;<a name="line.21"></a>
<span class="sourceLineNo">022</span>        <a name="line.22"></a>
<span class="sourceLineNo">023</span>        public GridPainter(ImageProcessor ip) {<a name="line.23"></a>
<span class="sourceLineNo">024</span>                this.ip = ip;<a name="line.24"></a>
<span class="sourceLineNo">025</span>        }<a name="line.25"></a>
<span class="sourceLineNo">026</span><a name="line.26"></a>
<span class="sourceLineNo">027</span>        public void drawSquares(Point2D[] cornerPnts) {<a name="line.27"></a>
<span class="sourceLineNo">028</span>                for (int i = 0; i &lt; cornerPnts.length; i += 4) {<a name="line.28"></a>
<span class="sourceLineNo">029</span>                        Point2D[] corners = new Point2D[4];<a name="line.29"></a>
<span class="sourceLineNo">030</span>                        for (int j = 0; j &lt; 4; j++) {   <a name="line.30"></a>
<span class="sourceLineNo">031</span>                                corners[j] = cornerPnts[i + j]; //TODO: check array bounds!<a name="line.31"></a>
<span class="sourceLineNo">032</span>                        }<a name="line.32"></a>
<span class="sourceLineNo">033</span>                        drawSquare(corners);<a name="line.33"></a>
<span class="sourceLineNo">034</span>                }<a name="line.34"></a>
<span class="sourceLineNo">035</span>        }<a name="line.35"></a>
<span class="sourceLineNo">036</span>        <a name="line.36"></a>
<span class="sourceLineNo">037</span>        public void drawSquare(Point2D[] cornerPnts) {<a name="line.37"></a>
<span class="sourceLineNo">038</span>                for (int j = 0; j &lt; 4; j++) {<a name="line.38"></a>
<span class="sourceLineNo">039</span>                        drawLine(cornerPnts[j], cornerPnts[(j + 1) % 4]);<a name="line.39"></a>
<span class="sourceLineNo">040</span>                }       <a name="line.40"></a>
<span class="sourceLineNo">041</span>                for (int j = 0; j &lt; 4; j++) {<a name="line.41"></a>
<span class="sourceLineNo">042</span>                        drawCorner(cornerPnts[j], cornerColors[j]);<a name="line.42"></a>
<span class="sourceLineNo">043</span>                }<a name="line.43"></a>
<span class="sourceLineNo">044</span>        }<a name="line.44"></a>
<span class="sourceLineNo">045</span><a name="line.45"></a>
<span class="sourceLineNo">046</span>        public void drawLine(Point2D p1, Point2D p2) {<a name="line.46"></a>
<span class="sourceLineNo">047</span>                int u1 = (int) Math.round(p1.getX());<a name="line.47"></a>
<span class="sourceLineNo">048</span>                int v1 = (int) Math.round(p1.getY());<a name="line.48"></a>
<span class="sourceLineNo">049</span>                int u2 = (int) Math.round(p2.getX());<a name="line.49"></a>
<span class="sourceLineNo">050</span>                int v2 = (int) Math.round(p2.getY());<a name="line.50"></a>
<span class="sourceLineNo">051</span>                if (lineCol != null) <a name="line.51"></a>
<span class="sourceLineNo">052</span>                        ip.setColor(lineCol);<a name="line.52"></a>
<span class="sourceLineNo">053</span>                ip.drawLine(u1, v1, u2, v2);<a name="line.53"></a>
<span class="sourceLineNo">054</span>        }<a name="line.54"></a>
<span class="sourceLineNo">055</span><a name="line.55"></a>
<span class="sourceLineNo">056</span>        public void drawCorner(Point2D p, Color col) {<a name="line.56"></a>
<span class="sourceLineNo">057</span>                int u = (int) Math.round(p.getX());<a name="line.57"></a>
<span class="sourceLineNo">058</span>                int v = (int) Math.round(p.getY());<a name="line.58"></a>
<span class="sourceLineNo">059</span>                if (col != null) <a name="line.59"></a>
<span class="sourceLineNo">060</span>                        ip.setColor(col);<a name="line.60"></a>
<span class="sourceLineNo">061</span>                ip.drawLine(u - crossSize, v, u + crossSize, v);<a name="line.61"></a>
<span class="sourceLineNo">062</span>                ip.drawLine(u, v - crossSize, u, v + crossSize);<a name="line.62"></a>
<span class="sourceLineNo">063</span>        }<a name="line.63"></a>
<span class="sourceLineNo">064</span><a name="line.64"></a>
<span class="sourceLineNo">065</span>}<a name="line.65"></a>




























































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